import numpy as np
# array = np.arange(4)
# print(array)
# array = np.arange(1, 10, 2)
# print(array)
# array = np.arange(0, 1, 0.2)
# print(array)
# array = np.arange(5,0,-1)
# print(array)
# a=np.linspace(2,8,num=60,retstep=True,endpoint=False)
# print(a)
# b=np.linspace(1,2,num=180,retstep=True,endpoint=False)
# print(b)
# c=np.logspace(2,8,num=5,base=2,endpoint=False)
# print(c)
a=np.arange(0,160,10,dtype='int')
print(a)
b=np.linspace(1.5,2.5,11,retstep=True)
print(b)
c=np.logspace(0,63,64,base=2,dtype='uint64')
print(c)